5.3 IRRIGATION (IRR) MODE
Irrigation is a basic operational Mode and is available in all other Modes except Coagulation.
IRR controls the irrigation pinch valve located on the left-hand side of the system where the tubing
cassette is placed before system operation.
Control of the irrigation pinch valve is performed by depressing the foot pedal main treadle to the
Irrigation position (1). This opens the irrigation pinch valve and allows fluid to flow. Releasing the
foot pedal will close the irrigation pinch valve and stop the flow of fluid.
The source of Irrigation flow control is provided by an inverted container of solution, which is
suspended above the patient’s eye level in the surgery room. The amount of solution delivered is
dependent upon the height of the container. This is known as a “gravity type” system.
Bottle height is measured from the floor to the bottom of the bottle hanger.
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